Work with nature in your garden; it is so much easier, and so much healthier! This program was developed by the U.S. Botanic Garden and the Lady Bird Johnson Wildflower Center to give you step-by-step information about assessing your garden's health, studying the drainage and water and, finally, making wise choices in plants and other materials. Jan Little, Duke Gardens' director of education and public programs, will guide participants through the development of a sustainability plan for their home sites in this five session class, meeting from Jan. 15 through Feb. 12. Location: Doris Duke Center. Participant limit: 15. Horticulture Certificate elective course.Information/registration: 919-668-1707.